Relay



April 6 1926.

J. S: GARVIN RELAY Filed Feb. 28, 1924 flit/mm)? Ja/m J dart in,

Patented Apr. 6, 1926.

UNITED STATES JOHN S. GARVIN, OF BOGOTA, NEW JERSEY, ASSIGNOR TO WESTERNELECTRIC COM 1,579,301 PATENT ()FFECE.

IPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

RELAY.

Application filed February 28, 1924.

To all 207mm 2'3 may concern:

Be it known that I, JOHN S. GARVIN, a citizen of the United States,residing at Bogota, in the county of Bergen and State 5 of New Jersey,have invented certain new and useful Improvements in Relays, of whichthe following is a full, clear, concise, and exact description.

This invention relates to relays having a plurality of contact springsarranged close together in what is usually referred to as a spring pileup.

The object of this invention is to improve apparatus of this characterand more specilically to facilitate the removal and replacement ofindividual springs, without disturbing the remainder of the springcombination.

A feature of this invention, therefore, resides in providing a relayhaving contact springs which can be quickly removed or replaced withoutdisturbing the rest of the spring pile up, as previously mentioned.

For a better understanding of this invention reference can be had to theaccompanying drawing in which Figs. 1 and 2 are side and perspectiveviews, respectively, showing in detail the parts of a relay embodyingthe invention.

A description of a relay embodying the in vention follows; Tl

.ie armature 10, adjustment screw 11 and the flexible spring 4 may beremoved from and replaced on the mounting plate 16 by removing thescrews 26 without disturbing the spring pile-up 12 or the coil 13.

The contact spring members 18 having a slot (6 lips 7) and contact 0 areheld against spring 22 in the spring pile up by means of washers 30 andscrews 1". By loosening the screws 17, a quick removal or replacement ofthe contact spring 18 is effected.

The stepped armature block 20, (which is preferably of some insulatingmaterial.) forming a part of the armature 10, cooperates with the springends 21 of the pile-up to flex the spring ends against the contactsprings 18 for making contact.

The core 15, of the coil 13, protrudes at onev end and is sorew threadedto receive a washer and a nut 14; for the purpose of holding the coil ina rigid manner on the mounting plate 16. By this construction, 1t willbe obvious that the coil 13 may be removed or replaced withoutdisturbing the spring Serial No. 695,741.

pile-up. Only a part of the unittype spring combination, which may beassembled independent of the relay, is shown in Fig. 1.

lVhat is claimed is:

1. A relay having a spring combination comprising a plurality of springspositionet one above the other in a desired space rela tion, one or morecontact members for male ing contact with and extending the springs ofsaid combination, each of said contact members including a plurality oflips for making contact in alignment with its associ ated spring, saidcontact members being adapted to be quickly removed or replaced withoutdisturbing the rest of said combination of springs.

2. A relay having a combination of springs in fixed super-position oneto an other, a contact extension member for each of said springs, eachsaid extension member comprising means including a plurality of lips formaking contact with its associated spring and a slot for enablingitsremoval orv replacement without disturbing the spring combination.

3. A relay having short contact members in combination with a pluralityof springs positioned one above the other in a desired space relation,each of said contact members comprising means including a slot forenabling the mounting thereof, and a plurality of lips for makingcontact in alignment with its associated spring.

4. A contacting device comprising in combination a removable coil, anarmature, adjusting means for said armature, a mounting plate, a springcombination comprising a plurality of springs separated by thin washersin fixed super-position one to another and situatedadjacent to saidmounting plate, contact members adapted to be easily removed andinterchanged for making contact wi h the springs of said combination,each of said contact members comprising means including a plurality oflips for making contact in alignment with said springs and meanscooperating with said armature for actuating said contact members tocause the closing and opening of contacts of said spring combination.

In witness whereof, I hereunto subscribe my name this 23rd day ofFebruary, A. 1)., 1924.

JOHN S. GARVIN.

